Running old App on Win7 - possible?

According to this:

http://msdn.microsoft.com/en-us/vbasic/ms788708.aspx

tabctl32.ocx should be supported.

Sounds like the installer is doing some other important things, perhaps registering other controls as well as tabctl32?

We have seem some 64-bit problems with VB apps.

64-bit Win 7 or 32-bit?

Have you tried Manual registration of the ocx?

regsvr32 c:\windows\system32\tabctl32.ocx